Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-diff-ignore-whitespace @ 5192:33015dac5df5
convert: fix mercurial_sink.putcommit
Changeset 4ebc8693ce72 added some code to putcommit to avoid creating a
revision that touches no files, but this can break regular conversions
from some repositories:
- conceptually, since we're converting a repo, we should try to make
the new hg repo as similar as possible to the original repo - we
should create a new changeset, even if the original revision didn't
touch any files (maybe the commit message had some important bit);
- even if a "regular" revision that doesn't touch any file may seem
weird (and maybe even broken), it's completely legitimate for a merge
revision to not touch any file, and, if we just skip it, the
converted repo will end up with wrong history and possibly an extra
head.
As an example, say the crew and main hg repos are sync'ed. Somebody
sends an important patch to the mailing list. Matt quickly applies
and pushes it. But at the same time somebody also applies it to crew
and pushes it. Suppose the commit message ended up being a bit
different (say, there was a typo and somebody didn't fix it) or that
the date ended up being different (because of different patch-applying
scripts): the changeset hashes will be different, but the manifests
will be the same.
Since both changesets were pushed to public repos, it's hard to recall
them. If both are merged, the manifest from the resulting merge
revision will have the exact same contents as its parents - i.e. the
merge revision really doesn't touch any file at all.
To keep the file filtering stuff "working", the generic code was changed
to skip empty revisions if we're filtering the repo, fixing a bug in the
process (we want parents[0] instead of tip).
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
---|---|
date | Fri, 17 Aug 2007 20:18:05 -0300 |
parents | 372d93f03d3a |
children |
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#!/bin/sh # GNU diff is the reference for all of these results. hgdiff() { echo hg diff $@ hg diff --nodates "$@" } test_added_blank_lines() { printf '\nhello world\n\ngoodbye world\n\n' >foo echo '>>> two diffs showing three added lines <<<' hgdiff hgdiff -b echo '>>> no diffs <<<' hgdiff -B hgdiff -Bb } test_added_horizontal_space_first_on_a_line() { printf '\t hello world\ngoodbye world\n' >foo echo '>>> four diffs showing added space first on the first line <<<' hgdiff hgdiff -b hgdiff -B hgdiff -Bb } test_added_horizontal_space_last_on_a_line() { printf 'hello world\t \ngoodbye world\n' >foo echo '>>> two diffs showing space appended to the first line <<<' hgdiff hgdiff -B echo '>>> no diffs <<<' hgdiff -b hgdiff -Bb } test_added_horizontal_space_in_the_middle_of_a_word() { printf 'hello world\ngood bye world\n' >foo echo '>>> four diffs showing space inserted into "goodbye" <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } test_increased_horizontal_whitespace_amount() { printf 'hello world\ngoodbye\t\t \tworld\n' >foo echo '>>> two diffs showing changed whitespace amount in the last line <<<' hgdiff hgdiff -B echo '>>> no diffs <<<' hgdiff -b hgdiff -Bb } test_added_blank_line_with_horizontal_whitespace() { printf 'hello world\n \t\ngoodbye world\n' >foo echo '>>> four diffs showing added blank line w/horizontal space <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } test_added_blank_line_with_other_whitespace() { printf 'hello world\n \t\ngoodbye world \n' >foo echo '>>> three diffs showing added blank line w/other space <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } test_whitespace_changes() { printf 'helloworld\ngoodbye\tworld \n' >foo echo '>>> four diffs showing changed whitespace <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb hgdiff -w } test_whitespace_changes_and_blank_lines() { printf 'helloworld\n\n\n\ngoodbye\tworld \n' >foo echo '>>> five diffs showing changed whitespace <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb hgdiff -w hgdiff -wB } hg init printf 'hello world\ngoodbye world\n' >foo hg ci -Amfoo -ufoo -d '0 0' test_added_blank_lines test_added_horizontal_space_first_on_a_line test_added_horizontal_space_last_on_a_line test_added_horizontal_space_in_the_middle_of_a_word test_increased_horizontal_whitespace_amount test_added_blank_line_with_horizontal_whitespace test_added_blank_line_with_other_whitespace test_whitespace_changes test_whitespace_changes_and_blank_lines